HGS Flashcards
You are preparing for an approach into BWI using ATIS information Alpha:
BWI A 1400Z 330/10G15 1/4SM DR 2 OVC 15/14 29.92 RVR RWY 33L 1400 Arrivals expect ILS 33L
Q.7.1 What are the considerations when choosing between the CAT I, SA CAT I and SA CAT II approaches?
- CAT I minimums are too high
- SA CAT I minimums don’t require AIII mode (as with the SA CAT II) and therefore gusty winds won’t generate an APCH WARN, but any decrease in visibility will cause a go-around.
- SA CAT II minimums increase the likelihood of visually acquiring the runway, but gusty winds may increase risk of an APCH WARN.
AOM 11.3 ILS Approaches
Q.7.2 Is the BWI ILS 33L SA CAT II approach, which requires use of HUD in AIII mode to touchdown, required to be hand flown below 1,000 ft AGL.
Yes, because the AIII mode is required
AOM 11.3.3.2
Q.7.3 Is a “LOOK SEE” authorized with CAT II and SA CATII approaches?
Yes: the only approach for which a LOOK SEE is not authorized is a CAT III.
AOM 11.1.4.11
You are now preparing to depart using RWY 28 in BWI. The current RVR is reported as 6/5/3. (lowest RVR on 10-9 is 5)
Q.7.4 Are you legal to take off?
No. The 10-9A must list “HGS 300 RVR” for the departure runway.
OPSPEC C078, AOM 9.2.6
Q.7.5 What is the primary reference during a HGS takeoff?
Normal outside references: (i.e., the runway surface).
AOM 9.2.6
Q.7.6 When would the primary refrence for takeoff not be outside references (i.e., the runway surface)?
If the Pilot loses outside references (e.g. due to heavy fog), use HGS guidance as the primary reference.
AOM 9.2.6
Q.7.7 When must the Captain disengage the autopilot and autothrottle during an HGS AIII approach?
The autopilot and autothrottle must be disengaged no later than 1,000 ft above TDZE.
AOM 11.3.7
Q.7.8 When is use of the HGS required for takeoff and/or landing?
Takeoff - Visibility below 500 RVR.
Landing – Less than 1800 RVR, depending on the approach or
“SOUTHWEST HGS ONLY” is published on the approach plate.
AOM 9.2.6, 11.3
Q.7.9 Who initiates the 1000 ft above TDZE call on an HGS AIII approach?
The FO initiates the call. For approaches requiring the AIII mode, call, “1,000 ft, AIII mode.” For all other HGS approaches, call, “1,000 ft.”
AOM 11.3.7
Q.7.10 When does the FO’s instrument monitoring responsibility end on an AIII approach?
When slowed to taxi speed, or 500 ft AGL on a go-around.
AOM 11.3.7
Q.7.11 Where do we find the correct runway distance when inputting HGS data for landing?
Enter the runway length from the PWB landing data. If runway length exceeds 13,500 ft enter “13500.”
AOM 11.3.7
Q.7.12 What is the correct callout when an APCH WARN illuminates during an AIII Mode approach?
A callout from the FO stating “Approach Warning, Go-Around.”
AOM 11.3.7
Q.7.13 What is the appropriate HGS mode during low visibility takeoffs?
Primary – PRI
AOM 9.2.6
Q.7.14 How do you remove all symbology on the Combiner display on the MAX aircraft?
Select CLR HGS on the MCDU display on the HGS DATA page.
FRM GIP 8.2.3, Fig 8.4
